fix helpers use in nova:rss, stop using Npm.require, es6 code
fix helpers use in nova:rss, stop using Npm.require, es6 code

Discordius/Lesswrong2,Discordius/Lesswrong2,Discordius/Lesswrong2,Discordius/Telescope,Discordius/Telescope,Discordius/Lesswrong2,Discordius/Telescope,Discordius/Telescope